Mercedes-Benz GLE450 vs BMW M5

What's the difference?

Well into its second generation, the Mercedes-Benz GLE remains a key player in the luxury large SUV space.

Though it lags well behind the BMW X5 in terms of sales, by about half in fact, the GLE still aims to exude status and luxury, helped by a facelift in 2023.

In its category, there are however plenty of badges with the power to lure buyers away: Audi, Porsche and Range Rover. Even non-Euros like Genesis and Lexus.

Despite the facelift, the category is moving on with big screens and more tech, where the GLE still has to rely on some traditional charm to win over wallets - especially in our big diesel ‘450d’ guise.

A week behind the wheel around and out of the city should reveal whether the GLE still has a strong-enough USP in 2025.

Balancing luxury car comfort, hot hatch agility and supercar speed is no easy task, yet that is what made the six previous generations of BMW's M5 so iconic. 

In seventh-generation ‘G90’ guise, the M5 has another skeleton in the cupboard: the toughest emissions regulations that Europe, and now Australia, have ever seen.

A twin-turbo V8 was untenable and going battery electric was not an option. Plug-in hybrid was the only answer. For the new M5, BMW combined a revised 4.4-litre ‘S68’ bent eight with a punchy electric motor for 535kW and 1000Nm. 

Problem is, the G90 is widely acknowledged as one of the greatest BMW M cars of all time, especially in CS trim. And thanks to a circa-600kg weight hike to nearly 2500kg, the new M5's 0-100km/h claim is actually slower than the old 'F90' M5. 

Doesn’t exactly sound like a big leap forward, does it?

A drive through the Central West of NSW and around the iconic Mount Panorama racing circuit gave us answers to two questions. Does the M5 work on Australia roads, and does BMW M's latest super-sedan represent progress?